First, get the extension here. To set a reminder, type "tm" to activate the timer extension, then tab or spacebar, and finally the time and message. At the time you specify, you'll get a desktop notification with your message.

You can open an incognito session by going to File -> New Incognito Window. A lot of people already use this for... lewd browsing, but it also comes in hand if you're gift shopping for someone else and getting around some prominent paywalls.

Right click on any search box and select "Add As Search Engine." In the subsequent menu, make sure you pick a simple, memorable keyword, 'cause that's what you'll use as a shortcut in the main search bar.